Doosan GV158TIC, Operation & Maintenance Manual

Page: 70 / 162

Disassembly and Reassembly of Major Components - 64 -
●
Measure the camshaft's axial end
play, moving the camshaft gear by
means of a driver.
●
If excessive end play, assemble it by
means of other thrust washer.
2) Inspection and measurement
●
With inspecting the cam surface for
any damage with naked eyes and cor-
rect any minor scratch by means of an
oil stone grinding and if severe,
replace it.
3) Cam lobe height
●
Use a micrometer to measure the cam
lobe height and journal diameter.
●
If the measured number is less than
the specified limit, the camshaft must
replaced.
(mm)
4) Cam journal diameter
●
By means of outside micrometer,
measure the camshaft journal.
EPM2017S
End play
Standard Limit
0.24 ~ 0.86 mm 0.9 mm
C
A
A
B B
D
I II
I II
EA0M4062
Standard Limit
Cam lobe
height (C)
Intake 56.37 56.032
Exhaust 56.43 56.091
Cam journal
diameter (A, B)
Standard Limit
ø
69.91 ~
ø
69.94
ø
69.560
EFM2045I